CloudMade/Leaflet — pull request #468 by appelflap (2012-02-03 22:44:41+00:00)
Title: Make _update obey min/max Zoom of layer

The layer has the properties minZoom and maxZoom, but they are not being used when updating the layer (e.g. after zooming). This makes the _update command obey these properties of the layer.
Without it the _update will generate 404 errors while fetching tiles of which the owner of the script already knows they are not there.